Distributor head for stokers



A ril 30, 1935. A. M. HUNT DISTRIBUTOR HEAD FOR STOKERS Filed Nov. 11,1930 3 Sheets-Sheet 1 ATTORNEY.

April 30, 1935. A. M. HUNT DISTRIBUTOR HEAD FOR STOKERS s She ets-Sheet2 Filed NOV. 11, 1930 IN V EN TOR A TTORNEY.

rl lllllfl/IA r!!! f April 30, 1935. A. M. Hum

DISTRIBUTOR HEAD FOR STOKERS Filed Nov. 11, 1930 5 Sheets-Sheet 3III/III 5 H I I 0 1 m m I 0 m a a m m 1 m m [4471/1 w. w M 1 a g z ATTORNEY.

25 the invention in position therein; I

Patented Apr. 30, 19 35 7 5 15999993 I m's'rnmu'ron iron stroK ns'Andrew M. Hunt, Berkeley, Calif; Orocker I irst I 'FederaLTrust.Company, executor of said An--- drew Hunt, deceasedgzassignor to TheStandard vStoker Company, Incorporated, a

- corporation -off-Delaware 1;.

Application November 11, 1930 Serial No. "494',829

This invention relates to'stokersof the scatter feed type, and moreparti'cularlyto that type I wherein the fuel is introduced through anopening'in the rear wall 'ofthe firebox and there projected over thefire by means of jetsof presthat. is cheap to manufacture, simple inconstruc- It isan object of the invention to provide, in a distributingmechanism of stokers of'the type described, a novel sectionaldistributor head having that portion thereofin'which the jetopeningssareformed or the hood portion as a separable member from the main body ofthe distributor head.

Anotherobject of theinvention is the provision of a new :and improveddistributor head tion, and one in which the hood portion maybe readilyand easily removed or replaced for-purposes of repair or-removing clogs.

Other .and further objects and advantages of the-invention will'appearfrom the'foll'owing-descriptionttaken in connection with the accompanying drawings, in which.

- 1.Fig.1 isa .verticaltcentral section of a'portion of a locomotive anda stoker therefor, showing Fig. .2 is aplan section on line:-2--2 ofFig. 1; Fig. 3 isv an isometric view of the lower or main body section;of the distributor .-.head;

7 Fig. '4 is an isometric view of theupper'or hood section of thedistributor head; 7 V

Fig. 5..is a section onthe line-5.5-of Fig.1; Fig.5 is a centralverticallongitudinal section through a portion of a locomotive, showingamodifiediform of the invention in place; and v Figfll'is a plan view onthegline 1--l of Fig.6..

Referring now tothe drawings,- the reference character I0 designates-alocomotive having the backhead ll provided with;thefiredooropening l2.The. structure thus far described may be of the usualorany' wellnknownconstruction,.and further descriptionor illustration is unnecessary.

Asuitablestoker jl3is provided for supplying fuel to the locomotive. Thestoker comprises a riser. conduit M which constitutes the forwardsection of a series of conduits leading from a suitable source of fuelsupply such as'a locomotive tender. The riser conduit. 14 extendsupwardly and is curved forwardly for delivering the fuel to the openingl2 onto a distributor plate l5, and is provided with a movable coversection l6 hinged at its .upper end as at I! and held in closed positionby the latch 18, whereby access. may be had to the interior of the riserconduit.-

The distributor plate may be of any type suitable' for spreading fuelover-{the firebox, that shownin the figures, being the preferred form.

l4 and ,forms an extended floor portion there-' for. The forward sideportions of the plate vl5 areprovided with thepocketsiiLQila, and the Jshaped deflecting ribs 2|, Zia, which serve to receiveand directaportion of the fuel to the rear corners'ofthefirebox.

:Rearwardly of, he distributorplate l5 and 1 9 The-plate l5 isdetachablysecured at its rear 1 ward face'to the upright wall 19 of theconduitvertically disposed in theupright wall IQ of the] arrangedtoreceive pressure fluid 'such as steam:

.The distributor-head22;isprovided with a plurality cfsteam chambers23,from the upper end of eachof which jet openingsv "24 in {horizontalalignmentiar'e adapted to direct blasts'of pres surefluid across theupper surface of the plate 15 for forcing the fuel to 'all'parts ofthefil'ebox I asrapidly as His delivered; onto the -platefi5."

Each chamber 23. is provided with "a separate pipe 25 for'supp1yingsteam thereto.

My invention contemplates theuse of a novel distributor headcomprisingamain body or lower portion 26 and a separable hood orupper portion 21."Itfrequentlyhappen's that the jet openings conduit M is theplate-likedistributor head-22;

become clogged and it is usual to remove theclogs 7 by insertinga pieceof .wire into thejet openings.

'Some of the .dirt' and clogging matter will be forced intojfthechambers-23, and intime 'it'is necessary to entirely remove thedistributor head V and disconnect the steamsupplylpipe fis 'in' order toremove the accumulation of dirt anddust in the chambers of thedistributorhead. This isa troublesome and time consuming job 'causing inconvenience and delay'. In my improved ,dis tributor head= ,constructionthe body portion' of the "distributor head and steam supply pipes arenot at all. disturbed and ,dirt' canbe conveniently and quicklyremovedfrom'the steam chambers by removing the easily accessiblehood portionof.j, V

the distributor head and blowing out the'dirt by means of the blast fromthe steam supply pipes 25. i The steam issuing from the jets 24Iwi1lalso in time out or wear away the sidesof the g'e't open- 7 ing and inprior constructions it has been necessary to remove'and replace theentire distributor head. My invention necessitates the replace ment onlyof the hood or upperp ortion of the dis-'. 7

tributor head, saving time, trouble andmoney andmaking repairs andreplacements possible without disarranging or disturbing any part ofhead. The hood or upper portion 21 of the distributor head is securelyattached to the conduit |4 by headed screws 30, 30a through its attacheing arms or lugs 3|, 3m extendinglaterally from the upright side wallsof the distributorfhead.

Thehood portion 2'! and the main body .portion' 26 of the distributorhead are fitted together so that their upright side walls exactlyregister, and are, securely and tightly attached to each other by theheaded screws 32, 32a through the drilled holes 33, 33a. and the 36,360., respectively. A soft copper or other suitablegasket 31 is placedbetween the contacting surfacesofthe hood and main body portions of thedistributor head .to insu'rea tight connection therebetween. v I

. Themain body or lower portion of the distributor'head extends upwardlya distance slightly above thefloor of the'conduit M to permit easyremoval and replacementof the hood portion and to permit properadjustment and tightening thereof. The extension of the main body of thedistributor head above thefioor of the conduit 7 also prevents particlesof coal and coal dust frombeing swept into the chambers 23 duringremoval or replacement of the hood portion of the dis-- tributor head. 1

Figs. 6 and 'Iillustrate a modified form of the invention wherein thedistributor headjis provided with a hood 38 having alip 33 formedintegral therewith and extending forwardly therefrom. The lip 39 has atendency tofiatten the blast of pressure fluidissuing'from the jet openings 24 and cooperates therewith to form a fiat fan-shaped pressurefluid blast. This construction reduces the arc of the aerial path of thefuel andreduces' the amount .offuel ordinarilyes caping over thefireboxarch unconsumed. Fuel delivered through the riserconduit I4" isurged across the lip'39 and is dropped onto the, distributor'platelisomewhat in advance of the jet openings 24, thereby minimizingclogging of the openings which occurs from tiine totime when the fuel isperinitted to drop onto the distributor plate'immediately in front ofthe jet openings. "I claim:

l. Ina Stoker, a fuel distributor plate,"a. con duit fordelivering solidfuel to said distributor plate having a" substantially horizontaldischarge mouth portion, a sectionaljpressure fluid distributor'h'ead,comprising a plate-like body, portion and'a" hood portion, said bodyportion being inserted inthe floor of the'horizontal mouth portionrearward of said distributor plateand said tapped openings 34, 34a .ofthe registering chamber walls 35, 35a and hood portion surmounting saidbody portion and extending above the top surface of the floor of saidhorizontal mouth portion, said hood portion having a row of jet openingsextending transversely of said conduit mouth portion and arranged toissue pressure'fiuid' blasts over the top surface of said plate, and alip formed with and extending forwardly from said hood portionimmediately above and extending beyond said jet openings and overlyingsaid distributor plate.

2, As a new article of manufacture, a discharge "section of aqsectiohalpressure fluid distributor headcomprising a-lflat front face, a flatbase substantially at right angles thereto, an arcuate roof joining theremote edges of said front face and said base,said"discharge section incross sec- :tion perpendicular to 'said base and front facebeingapproximately quarter round, said discharge section being providedwith passages extending upwardly through said base and terminating shortof said arcuate roof, the front face of said discharge section having arow of dis; charge orifices disposed .at approximate 1 right angles tosaid passages, each opening at one end into one of said passages and alip formed, with and extending forwardly at'substantially'a right anglefrom thefront face of said discharge section immediately above andsubstantially parallel with said row of orifices.

In astoker, a fuel distributor plate, a conduit for delivering fuelthereto having a sub stantially horizontal mouth portion, a sectionalpressure fluid distributor head comprising a pressure fluid receivingsection and a pressure fluid discharge section, said receiving sectionbeing 'inserted in the floor of said horizontal mouth por tion and beingprovided with partition walls'to form a plurality'of passages thereinopen at their respective opposite ends, 'said discharge sectionsurmounting said receiving section and extending above the topsurface ofthe fioorof-said mouth portion, said discharge section being pr0-'videdwith partition walls to form'a plurality of passages therein, saidfirst named walls and passages registering with said second named wallsand passages to form continuous passages and walls in said "receivingand said discharge sec-- tions, said discharge section having aplurality of spaced horizontally aligned jet openings thereincommunicating with the passages 'in said discharge" section forissuingpressure fluid blasts *acrossthe top surface of saidplate, certain ofthe. partition walls of said receiving section hav-' 1 ing threadedopenings therein, the partition walls of saiddischargesection havingopenings extending therethrough and registering. with said threadedopenings, and means extending through the openings in the partitionwalls of said discharge section arranged to securely fasten saiddischarge section to said receiving section.

: :YANDREW M; HUNT.

